Method and device for operating an actuator with a capacitive element
AssigneeRobert Bosch GmbH
InventorsRainer Knicker, Udo Schulz, Andreas Huber, Johannes-Joerg Rueger
Life of this patent
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Abstract
A positioner includes a capacitative element with which an ohmic resistance is connected in parallel. The value of the ohmic resistance is sensed at specific points in time. To enhance operating reliability during operation of the positioner, correct functioning of the ohmic resistance is monitored, and a fault signal is outputted upon detection of a malfunction.
Claims15
A method for operating an actuator having a capacitative element, an ohmic resistance connected in parallel with the capacitative element, and a value of the ohmic resistance configured to be sensed at specific points in time, the method comprising:
- monitoring a correct functioning of the ohmic resistance;
- and
- outputting a fault signal upon detection of a malfunction.
A computer-readable storage medium for storing a computer program that is executable on a computer and controlling a method to operate an actuator having a capacitative element, an ohmic resistance connected in parallel with the capacitative element, and a value of the ohmic resistance configured to be sensed at specific points in time, the method comprising:
- monitoring a correct functioning of the ohmic resistance;
- and
- outputting a fault signal upon detection of a malfunction.
A control unit using at least one of an open-loop control and a closed-loop control for operating a positioner having a capacitative element, an ohmic resistance connected in parallel with the capacitative element, and a value of the ohmic resistance configured to be sensed at specific points in time, comprising:
- a memory to store a computer program for controlling a method to operate the positioner, the method including:
- monitoring a correct functioning of the ohmic resistance;
- and
- outputting a fault signal upon detection of a malfunction.
An internal combustion engine, comprising:
- a combustion chamber;
- at least one injector including an actuator having a capacitative element and an ohmic resistance connected in parallel with the capacatative element;
- and
- a control device using at least one of an open-loop control and a closed-loop control to control the actuator, monitor a correct functioning of the ohmic resistance, and output a fault signal upon detection of a malfunction.
Dependencies are inferred from the claim text.